Much is left unknown about applicable conditions of the method or quantification of the cathodic protection range. In particular, little has been studied about how the range or effect of cathodic protection is influenced by such factors as the thickness of reinforcing bars (rebars) to be protected, combined deterioration by carbonation and mixed chloride, amount of chloride ions and carbonation depth. This study experimentally evaluated the effect of differences in the chloride ion content in concrete, the carbonation depth or the rebar thickness on the cathodic protection range of the embedded sacrificial anode method. The results of the experiment were that the smaller the carbonation depth, the amount of chloride ions or the rebar thickness, the larger the amount of depolarization of the rebars in the concrete to be protected was. That is, for corrosion protection of rebars near patch repair areas embedded with sacrificial anodes, it would be appropriate to make the steel surface area of components smaller and the salt damage environment less corrosive.

关于该方法的适用条件或阴极保护范围的量化，还有很多未知。特别是，关于阴极保护的范围或效果如何受保护钢筋（钢筋）厚度、碳化和混合氯化物的综合劣化、氯离子量和碳化深度等因素影响的研究很少。本研究通过实验评估了混凝土中氯离子含量、碳化深度或钢筋厚度的差异对嵌入式牺牲阳极法阴极保护范围的影响。实验结果表明，碳化深度、氯离子量或钢筋厚度越小，待保护混凝土中钢筋的去极化量越大。那是，